Ever wonder why a curveball curves, or what’s inside of a baseball? Find out here at the Exploratorium's Science of Baseball site.

Throughout the Science of Baseball site, you’ll investigate the insides of that iconic leather-covered ball, test your reaction time with a bat, find a bat’s sweet spot and more. You'll discover how to throw a slider, what it feels like to soak in the adoration of a crowd, how come a baseball has stitches - as well as the history of this popular game.